51111162099 has 12 divisors (see below), whose sum is σ = 78170012856. Its totient is φ = 32069748672.

The previous prime is 51111162077. The next prime is 51111162101. The reversal of 51111162099 is 99026111115.

51111162099 is a `hidden beast` number, since 5 + 1 + 11 + 11 + 620 + 9 + 9 = 666.

It is not a de Polignac number, because 51111162099 - 2⁷ = 51111161971 is a prime.

It is a super-2 number, since 2×51111162099² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51111162049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167029789 + ... + 167030094.

It is an arithmetic number, because the mean of its divisors is an integer number (6514167738).

Almost surely, 2^51111162099 is an apocalyptic number.

51111162099 is a deficient number, since it is larger than the sum of its proper divisors (27058850757).

51111162099 is a wasteful number, since it uses less digits than its factorization.

51111162099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334059906 (or 334059903 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 36.

The spelling of 51111162099 in words is "fifty-one billion, one hundred eleven million, one hundred sixty-two thousand, ninety-nine".